protists. kingdom phylum genus family class order species domain
TRANSCRIPT
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PROTISTSPROTISTS
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KINGDOM
PHYLUM
GENUS
FAMILY
CLASS
ORDER
SPECIES
DOMAIN
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Kingdom ProtistaKingdom Protista
Does your family have a drawer at home where Does your family have a drawer at home where you keep "stuff"? That drawer might include a you keep "stuff"? That drawer might include a flashlight, tape measure, spare keys, rubber flashlight, tape measure, spare keys, rubber bands, or extra stamps. These objects have little bands, or extra stamps. These objects have little in common except that they are kept in the same in common except that they are kept in the same drawer for convenience. Biologists have a sort of drawer for convenience. Biologists have a sort of taxonomic "stuff" drawer: the kingdom Protista. taxonomic "stuff" drawer: the kingdom Protista. Protista is a very diverse kingdom of organisms Protista is a very diverse kingdom of organisms that do not fit neatly into any of the other that do not fit neatly into any of the other kingdoms.kingdoms.
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Protist Characteristics Protist Characteristics
Eukaryotic (have a nuclear membrane)Eukaryotic (have a nuclear membrane)
Very diverse kingdomVery diverse kingdomMost are unicellularMost are unicellularFree-living (not parasites)Free-living (not parasites)Protist cells are the most complex cellProtist cells are the most complex cell– ** NOT specialized for 1 function**** NOT specialized for 1 function**
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Kingdom ProtistaKingdom Protista
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Grouping Protists by Grouping Protists by nutritionnutrition3 Major categories:3 Major categories:
1) animal-like (protozoans)1) animal-like (protozoans)
2) fungus-like2) fungus-like
3) plant like = algae3) plant like = algae
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Grouping Protists by Grouping Protists by nutritionnutrition1) animal-like (Protozoans)1) animal-like (Protozoans)
**heterotrophs: get energy & organic molecules by heterotrophs: get energy & organic molecules by eating…eating…
bacteriabacteria
other protistsother protists
decaying matterdecaying matter
* found mostly in aquatic environments* found mostly in aquatic environments
* Grouped by motility* Grouped by motility
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Zooflagelletes Zooflagelletes
Move by flagellaMove by flagella
GiardiaGiardia
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Amoeba with Pseudopods Amoeba with Pseudopods
Have pseudopodsHave pseudopods
AmoebaAmoeba
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Ciliated ParameciumCiliated Paramecium
Small hair-like ciliaSmall hair-like cilia
ParameciumParamecium
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ApicomplexansApicomplexans
No movement (they No movement (they are parasites)are parasites)
Plasmodium- causes Plasmodium- causes malariamalaria
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Grouping Protists by Grouping Protists by nutritionnutrition3 Major categories:3 Major categories:
2) fungus-like2) fungus-like
3) plant like = algae3) plant like = algae
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Grouping Protists by Grouping Protists by nutritionnutrition2) fungus-like2) fungus-like
heterotrophic…….get food & energy by decomposing heterotrophic…….get food & energy by decomposing DEAD organic matterDEAD organic matter
NOT to be confused with fungi, though they are similarNOT to be confused with fungi, though they are similar
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Grouping Protists by Grouping Protists by nutritionnutrition2) fungus-like2) fungus-like
Major types:Major types:
plasmodial slime moldsplasmodial slime molds
water molds/ downy mildewswater molds/ downy mildews
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Grouping Protists by Grouping Protists by nutritionnutrition3 Major categories:3 Major categories:
3) plant like = algae3) plant like = algae
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Grouping Protists by Grouping Protists by nutritionnutrition3) plant like = algae3) plant like = algae
autotrophs…….chloroplasts harness sunlight to make autotrophs…….chloroplasts harness sunlight to make food (carbohydrates)food (carbohydrates)
unicellular, colonial, OR multicellularunicellular, colonial, OR multicellular
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Grouping Protists by Grouping Protists by nutritionnutrition3) plant like = make own food3) plant like = make own food
TYPES:TYPES:
euglenoids- flagella, chloroplast, eyespot, no cell euglenoids- flagella, chloroplast, eyespot, no cell wallwall
- live in fresh water- live in fresh water
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Grouping Protists by Grouping Protists by nutritionnutrition3) plant like = make own food3) plant like = make own food
TYPES:TYPES:
Dinoflagellates- 2 flagella, spin, cell wallDinoflagellates- 2 flagella, spin, cell wall
- plankton, red tide- plankton, red tide
- bioluminescence- bioluminescence
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Grouping Protists by Grouping Protists by nutritionnutrition3) plant like = make own food3) plant like = make own food
TYPES:TYPES:
Diatoms- glass-like cell wall (silica)Diatoms- glass-like cell wall (silica)
- chlorophyll- chlorophyll
- diatomaceous earth - diatomaceous earth
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Grouping Protists by Grouping Protists by nutritionnutrition3) plant like = make own food3) plant like = make own food
TYPES:TYPES:
Seaweed- large, multicellular marine algaeSeaweed- large, multicellular marine algae
- NOT plants (lack true roots, stems, leaves)- NOT plants (lack true roots, stems, leaves)
- foods, used to thicken foods- foods, used to thicken foods
1) BROWN ALGAE (kelp)1) BROWN ALGAE (kelp)
2) RED ALGAE2) RED ALGAE
3) GREEN ALGAE3) GREEN ALGAE